docs: def genstis(outname):
      """ Generate TestCases from cmdfile according to the pattern in patternfile"""
      pattern="""class stisS%d(countrateCase):
      def setUp(self):
          self.obsmode="%s"
          self.spectrum="%s"
          self.setglobal(__file__)
          self.runpy()\n"""
  
      speclist=['/grp/hst/cdbs/calspec/gd71_mod_005.fits',
                '/grp/hst/cdbs/calspec/gd153_mod_004.fits',
                '/grp/hst/cdbs/calspec/g191b2b_mod_004.fits']
  
      glist={'g140l':'fuvmama','g230l':'nuvmama','g430l':'ccd','g750l':'ccd',
      'g230lb':'ccd'}
  
      out=open(outname,'a')
      out.write("""from pytools import testutil
  import sys
  from basecase import calcphotCase, calcspecCase, countrateCase,SpecSourcerateSpecCase\n
  """)
      count=0
      for g in glist:
          for sp in speclist:
              obsmode='stis,%s,fuvmama,s52x2'%g
              defn=pattern%(count,obsmode,sp)
              out.write(defn)
              count+=1
  
      out.write("""\n\n
  if __name__ == '__main__':
      if 'debug' in sys.argv:
          testutil.debug(__name__)
      else:
          testutil.testall(__name__,2)
  """)
  
      out.close()